EP0689150B1 - Verfahren sowie Einrichtung zur Identifikation beweglicher Objekte - Google Patents
Verfahren sowie Einrichtung zur Identifikation beweglicher Objekte Download PDFInfo
- Publication number
- EP0689150B1 EP0689150B1 EP95890115A EP95890115A EP0689150B1 EP 0689150 B1 EP0689150 B1 EP 0689150B1 EP 95890115 A EP95890115 A EP 95890115A EP 95890115 A EP95890115 A EP 95890115A EP 0689150 B1 EP0689150 B1 EP 0689150B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- transponder
- signature
- sig
- identification feature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
- G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
- G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
Definitions
- the invention relates to a method and a device for automatic and non-contact identification of moving objects that contain a transponder, which contains the identification feature stored, an information reading Interrogation station sends a carrier frequency signal, the transponder this signal receives and combined with the encrypted identification signal and this Combination signal sent back to the interrogation station, which from the Identification signal filters out the identification feature and for further processing provides.
- the invention solves this problem a method with the features of claim 1.
- the signature is protected against repetition.
- the auxiliary signal is from a time signal transmitter radiated time signal.
- the time signal of the known transmitter DCF-77 is available across countries, so that a facility equipped with it is spacious can be used.
- the invention further relates to a device for automatic and contactless Identification of moving objects according to claim 3.
- a particularly advantageous embodiment of the invention provides that the receiver for the auxiliary signal to a generally receivable time signal transmitter, for example, the transmitter DCF-77 is tuned.
- the facility for identifying moving objects consists of one in the field Fixed interrogation station 1, hereinafter called the interrogator, and an am fixed object transponder 3.
- the interrogator 1 contains an HF part 10 and an evaluation part 20.
- the HF part 10 emits an unmodulated HF carrier signal f 0 generated in the HF source 11 and amplified in the transmitter 12.
- this received carrier signal is modulated with the transponder-specific identification signal IDSIG and sent back to the interrogator 1 as a return signal f ' 0, received by the interrogator 1 via the antenna 14 and the receiver 13 and evaluated in the evaluation part 20.
- Both the interrogator and the transponder contain a time receiver 23 and 33, both of which simultaneously receive the same time signal, for example from the known time signal transmitter DCF-77.
- This radio time signal is available over a large area, that is to say it covers all countries.
- this time signal T is combined in a concatenation stage 37 with the identity feature ID stored in the identification memory 39 to form a combination signal IDT and further encrypted in an encryption stage 36 according to a predetermined signature algorithm with an identification key K ID stored in the key memory 31 for the signature SIG.
- the final identification signal IDSIG is produced, which, as already mentioned, is reflected back to the interrogator.
- the identification signal IDSIG is again divided into the identity feature ID and the signature SIG in a separator 28.
- the identity feature ID is combined with the time signal T received by the time receiver 23 by concatenation 27.
- This combination signal IDT is encrypted with the key K ' ID stored in the key memory 21 according to the signature algorithm 26.
- the resulting signature SIG ' is compared in a comparator 29 with the signature SIG supplied from the separator 28.
- the identity of SIG and SIG ' is valid as verification of the identity feature ID of the transponder 3 or of the moving object equipped with it.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Theoretical Computer Science (AREA)
- Radar Systems Or Details Thereof (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Near-Field Transmission Systems (AREA)
- Cash Registers Or Receiving Machines (AREA)
Description
Claims (4)
- Verfahren zur automatischen und berührungslosen Identifikation beweglicher Objekte, die einen Transponder (3) enthalten, der ein Identifikationsmerkmal (ID) gespeichert enthält, wobei eine informationslesende Abfragestation (1) ein Trägerfrequenzsignal (f0) aussendet, der Transponder (3) dieses Signal empfängt und mit einem verschlüsselten Identifizierungssignal (IDSIG) kombiniert, welches aus einer Konkatenation des Identifikationsmerkmals (ID) und einer Signatur (SIG) besteht und dieses Kombinationssignal (f'0) an die Abfragestation zurücksendet, die aus dem Identifizierungssignal (IDSIG) das Identifikationsmerkmal (ID) herausfiltert und zur Weiterverarbeitung bereitstellt, dadurch gekennzeichnet, daß das Identifikationsmerkmal (ID) im Transponder (3) zur Erzeugung des Identifizierungssignals (IDSIG) mit einem von einem im gesamten Bewegungsbereich des beweglichen Objektes empfangbaren Senders ausgestrahlten und laufenden Änderungen unterworfenen Hilfssignal (T) kombiniert, und hiermit das Kombinations signal (f'0) erzeugt wird, dieses Kombinationssignal (f'0) vom Transponder (3) abgestrahlt und von der Abfragestation (1) empfangen wird, daß die Abfragestation (1) ebenfalls das Hilfssignal (T) empfängt, daß aus dem empfangenen Kombinationssignal (f'0) das Identifikationsmerkmal (ID) herausgefiltert wird, und hiermit zusammen mit dem von der Abfragestation (1) empfangenen Hilfssignal (T) eine Signatur (SIG') erzeugt wird, welche mit der im empfangenen Kombinationssignal enthaltenen Signatur (SIG) verglichen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Hilfsignal (T) ein von einem Zeitzeichensender (DCF-77) abgestrahltes Zeitsignal ist.
- Einrichtung zur automatischen und berührungslosen Identifikation beweglicher Objekte, bestehend aus einem objektspezifischen Transponder (3) , der ein Identifikationsmerkmal (ID) gespeichert enthält, und einer informationslesenden Abfragestation (1), wobei die Abfragestation (1) ein Trägerfrequenzsignal (f0) aussendet, der Transponder (3) dieses Signal empfängt und mit einem verschlüsselten Identifizierungssignal (IDSIG) kombiniert, das aus der Konkatenation einer Signatur (SIG) und des Identifikationsmerkmals (ID) besteht, und dieses Kombinationssignal (f'0) an die Abfragestation (1) zurücksendet, die das Identifizierungssignal (IDSIG) in einer Trennstufe (28) in das Identifikationsmerkmal (ID) und die Signatur (SIG) trennt, dadurch gekennzeichnet, daß sowohl der Transponder (3) als auch die Abfragestation (1) einen Empfänger (33 bzw. 23) enthalten, der ein von einem im gesamten Bewegungsbereich des beweglichen Objektes empfangbaren Sender ausgestrahltes und ständigen Änderungen unterworfenes Hilfssignal (T) empfängt, daß der Transponder (3) weiters eine Konkatenationsstufe (37) enthält, die das Identifikationsmerkmal (ID) mit diesem Hilfssignal (T) kombiniert, und hiermit das Kombinations signal (f'0) erzeugt wird und daß die Abfragestation (1) ebenfalls eine Konkatenationsstufe (27) enthält, die das abgetrennte Identifikationsmerkmal (ID) mit dem von der Abfragestation empfangenen Hilfssignal (T) kombiniert und damit eine Signatur (SIG') zum Vergleich mit der im empfangenen Kombinationssignal (f'0) enthaltenen Signatur (SIG) erzeugt wird.
- Einrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Empfänger für das Hilfssignal (T) auf einen allgemein empfangbaren Zeitzeichensender, beispielsweise den Sender DCF-77 abgestimmt ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT124294 | 1994-06-23 | ||
AT124294 | 1994-06-23 | ||
AT1242/94 | 1994-06-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0689150A2 EP0689150A2 (de) | 1995-12-27 |
EP0689150A3 EP0689150A3 (de) | 1996-05-15 |
EP0689150B1 true EP0689150B1 (de) | 2000-03-29 |
Family
ID=3509686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95890115A Expired - Lifetime EP0689150B1 (de) | 1994-06-23 | 1995-06-23 | Verfahren sowie Einrichtung zur Identifikation beweglicher Objekte |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0689150B1 (de) |
AT (1) | ATE191284T1 (de) |
DE (1) | DE59508079D1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0982687A1 (de) * | 1998-08-26 | 2000-03-01 | Datamars SA | Verfahren zur Verhinderung oder Erkennung von Betrug in einem Identifikationssystem |
NL1010616C2 (nl) * | 1998-11-20 | 2000-05-23 | Ptt Post Holdings Bv | Werkwijze en inrichtingen voor het afdrukken van een frankeerkenmerk op een document. |
WO2000031692A1 (en) * | 1998-11-20 | 2000-06-02 | Ptt Post Holdings B.V. | Method and devices for printing a franking mark on a document |
EP1316814A1 (de) | 2001-11-30 | 2003-06-04 | Cross Point RFAPP B.V. i.o. | Verfolgen von mit Transponder versehenen Objekten |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3242551C2 (de) * | 1981-11-17 | 1984-05-17 | Götting KG, 3161 Röddensen | Anordnung zum Identifizieren eines Objektes |
GB2164825B (en) * | 1984-09-19 | 1988-05-11 | Satellite Video Systems Ltd | Coded transponder for indentification system |
SE9203479L (sv) * | 1992-01-20 | 1993-07-21 | Rso Corp | Saett och anordning vid elektronisk identifiering |
NL9202069A (nl) * | 1992-11-30 | 1994-06-16 | Nedap Nv | Identificatiesysteem met verbeterde identificatie-algorithme. |
-
1995
- 1995-06-23 AT AT95890115T patent/ATE191284T1/de active
- 1995-06-23 DE DE59508079T patent/DE59508079D1/de not_active Expired - Lifetime
- 1995-06-23 EP EP95890115A patent/EP0689150B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0689150A3 (de) | 1996-05-15 |
ATE191284T1 (de) | 2000-04-15 |
EP0689150A2 (de) | 1995-12-27 |
DE59508079D1 (de) | 2000-05-04 |
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